دورية أكاديمية
The response of physiological and xylem anatomical traits under cadmium stress in Pinus thunbergii seedlings.
| العنوان: | The response of physiological and xylem anatomical traits under cadmium stress in Pinus thunbergii seedlings. |
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| المؤلفون: | Li S; Department of Environmental Science and Ecology, School of Environmental Science and Engineering, Shaanxi University of Science and Technology, Xi'an Weiyang University Park, Weiyang District, Xi'an, Shaanxi Province, 710021, P.R. China., Li H; Department of Environmental Science and Ecology, School of Environmental Science and Engineering, Shaanxi University of Science and Technology, Xi'an Weiyang University Park, Weiyang District, Xi'an, Shaanxi Province, 710021, P.R. China., Wang J; Department of Environmental Science and Ecology, School of Environmental Science and Engineering, Shaanxi University of Science and Technology, Xi'an Weiyang University Park, Weiyang District, Xi'an, Shaanxi Province, 710021, P.R. China., Lu S; Department of Environmental Science and Ecology, School of Environmental Science and Engineering, Shaanxi University of Science and Technology, Xi'an Weiyang University Park, Weiyang District, Xi'an, Shaanxi Province, 710021, P.R. China., Liu Z; Department of Environmental Science and Ecology, School of Environmental Science and Engineering, Shaanxi University of Science and Technology, Xi'an Weiyang University Park, Weiyang District, Xi'an, Shaanxi Province, 710021, P.R. China., Jia H; Department of Environmental Science and Ecology, School of Environmental Science and Engineering, Shaanxi University of Science and Technology, Xi'an Weiyang University Park, Weiyang District, Xi'an, Shaanxi Province, 710021, P.R. China., Wei T; Department of Environmental Science and Ecology, School of Environmental Science and Engineering, Shaanxi University of Science and Technology, Xi'an Weiyang University Park, Weiyang District, Xi'an, Shaanxi Province, 710021, P.R. China., Guo J; Department of Environmental Science and Ecology, School of Environmental Science and Engineering, Shaanxi University of Science and Technology, Xi'an Weiyang University Park, Weiyang District, Xi'an, Shaanxi Province, 710021, P.R. China. |
| المصدر: | Tree physiology [Tree Physiol] 2024 May 05; Vol. 44 (5). |
| نوع المنشور: | Journal Article |
| اللغة: | English |
| بيانات الدورية: | Publisher: Oxford University Press Country of Publication: Canada NLM ID: 100955338 Publication Model: Print Cited Medium: Internet ISSN: 1758-4469 (Electronic) Linking ISSN: 0829318X NLM ISO Abbreviation: Tree Physiol Subsets: MEDLINE |
| أسماء مطبوعة: | Publication: Oxford : Oxford University Press Original Publication: Victoria, [B.C.] : Heron Pub., c1986- |
| مواضيع طبية MeSH: | Cadmium*/metabolism , Xylem*/metabolism , Xylem*/physiology , Pinus*/physiology , Pinus*/anatomy & histology , Pinus*/metabolism , Pinus*/drug effects , Seedlings*/physiology , Seedlings*/drug effects , Seedlings*/metabolism , Seedlings*/anatomy & histology, Plant Growth Regulators/metabolism ; Plant Stems/drug effects ; Plant Stems/anatomy & histology ; Plant Stems/metabolism ; Plant Stems/physiology ; Stress, Physiological ; Plant Roots/anatomy & histology ; Plant Roots/metabolism ; Plant Roots/physiology ; Plant Roots/drug effects ; Plant Leaves/physiology ; Plant Leaves/metabolism ; Plant Leaves/anatomy & histology ; Plant Leaves/drug effects |
| مستخلص: | Studying the response of physiological and xylem anatomical traits under cadmium stress is helpful to understand plants' response to heavy metal stress. Here, seedlings of Pinus thunbergii Parl. were treated with 50, 100 and 150 mg kg-1 Cd2+ for 28 days. Cadmium and nonstructural carbohydrate content of leaves, stems and roots, root Cd2+ flux, cadmium distribution pattern in stem xylem and phloem, stem xylem hydraulic traits, cell wall component fractions of stems and roots, phytohormonal content such as abscisic acid, gibberellic acid 3, molecule -indole-3-acetic acid, and jasmonic acid from both leaves and roots, as well as xylem anatomical traits from both stems and roots were measured. Root Cd2+ flux increased from 50 to 100 mmol L-1 Cd2+ stress, however it decreased at 150 mmol L-1 Cd2+. Cellulose and hemicellulose in leaves, stems and roots did not change significantly under cadmium stress, while pectin decreased significantly. The nonstructural carbohydrate content of both leaves and stems showed significant changes under cadmium stress while the root nonstructural carbohydrate content was not affected. In both leaves and roots, the abscisic acid content significantly increased under cadmium stress, while the gibberellic acid 3, indole-3-acetic acid and jasmonic acid methylester content significantly decreased. Both xylem specific hydraulic conductivity and xylem water potential decreased with cadmium stress, however tracheid diameter and double wall thickness of the stems and roots were not affected. High cadmium intensity was found in both the stem xylem and phloem in all cadmium stressed treatments. Our study highlighted the in situ observation of cadmium distribution in both the xylem and phloem, and demonstrated the instant response of physiological traits such as xylem water potential, xylem specific hydraulic conductivity, root Cd2+ flux, nonstructural carbohydrate content, as well as phytohormonal content under cadmium stress, and the less affected traits such as xylem anatomical traits, cellulose and hemicellulose. (© The Author(s) 2024. Published by Oxford University Press. All rights reserved. For permissions, please e-mail: journals.permission@oup.com.) |
| معلومات مُعتمدة: | 32001291 National Natural Science Foundation of China; 2024SF-YBXM-540 Key Research and Development Program of Shaanxi; 126022037 Talent Project of Shaanxi University of Science and Technology |
| فهرسة مساهمة: | Keywords: accumulation ability; cell wall component; heavy metal; nonstructural carbohydrate; phytohormone; xylem hydraulics |
| المشرفين على المادة: | 00BH33GNGH (Cadmium) 0 (Plant Growth Regulators) |
| تواريخ الأحداث: | Date Created: 20240427 Date Completed: 20240527 Latest Revision: 20240527 |
| رمز التحديث: | 20240527 |
| DOI: | 10.1093/treephys/tpae046 |
| PMID: | 38676919 |
| قاعدة البيانات: | MEDLINE |
Full Text Finder | تدمد: | 1758-4469 |
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| DOI: | 10.1093/treephys/tpae046 |